کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6317549 | 1619188 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Plants influence on arsenic availability and speciation in the rhizosphere, roots and shoots of three different vegetables
ترجمه فارسی عنوان
گیاهان بر روی دسترس بودن و رسم آرسنیک در ریزوسفر، ریشه و شاخه های سه سبزی مختلف تاثیر می گذارد
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کلمات کلیدی
آرسنیک، انباشت، خاصیت، دسترسی، ریزوسفر،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
چکیده انگلیسی
The toxicity of arsenic (As) in the environment is controlled by its concentration, availability and speciation. The aims of the study were to evaluate the accumulation and speciation of As in carrot, lettuce and spinach cultivated in soils with various As concentrations and to estimate the concomitant health risks associated with the consumption of the vegetables. Arsenic concentration and speciation in plant tissues and soils was analysed by HPLC, AAS and XANES spectroscopy. To estimate the plants influence in the rhizosphere, organic acids in lettuce root exudates were analysed by ion chromatography. The results showed that the As accumulation was higher in plants cultivated in soil with higher As extractability. Arsenate predominated in the soils, rhizosphere and root exudates of lettuce. Succinic acid was the major organic acid in lettuce root exudates. Ingestion of the tested vegetables may result in an intake of elevated levels of inorganic As.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 184, January 2014, Pages 540-546
Journal: Environmental Pollution - Volume 184, January 2014, Pages 540-546
نویسندگان
Claes Bergqvist, Roger Herbert, Ingmar Persson, Maria Greger,